Zapiszw prostszej postaci:
a) 3x + 4x + 5y - 2y =
b) 2a + b - 4b =
c) 3x -y + 4x - 2y =
d) -2a + 2b - 3a - 3b
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a) 7x + 3y
b)2a - 3b
c) 7x - 3y
d) -5a - b
a)3x+4x+5y-2y=7x+3y
b)2a+b-4b=2a-3b
c)3x-y+4x-2y=7x-3y
d)-2a+2b-3a-3b=-5a-1b